Nut-lock



(No Model.)

.F.JONBS.

NUT LOOK.

No. 254,773. Patented Mar. 7,1882.

N. Prrzm mmm-ognuno wa-himw. n4 c.

UNITED STATES PATENT OEEICE.

PRESTON JONES, OF SHELBYVILLE, INDIANA, ASSIGNOR TO HUGH MOKENZIE, OF CINCINNATI, OHIO.

NUT-1.00K.-

SPECIFICATION forming part of Letters Patent No. 254,773, dated March '7, 1882.

Application led J" une 13, 1881. (No model.)

To all whom it may concern:

Be it known that I, PEEs'roN JONES, of the city of Shelbyville, countyof Shelby, and State of Indiana, have invented certain new and useful Improvements in Nut-Locks, of which the following is a specification.

The object of my said invention is to produce a device for lookin g nuts on railroad-rail joints and other places; and it consists of a sheet-metal washer `for the nut, having a housing to contain a key, and a suitable key therefor, the same being constructed and com biued with the boltand nut in the manner hereinafter more particularly specified.

Referring to the accompanying drawings, which are made a part hereof, and on which similar letters of reference indicate correspondin g parts, Figure l is a perspective view of a bolt, its nut, and one form of myimproved lock; Fig. 2, a side elevation of a railroadrail joint having my improved nut-locks thereon Fig. 3, a horizontal section of Fig. 2, looking downwardly from the dotted line :c as therein 5 Fig. 4, a transverse vertical section, looking to the left from the dotted line y y in the same ligure; and Fig. 5, a view in some respects similar to Fig. 4, but showing the nutlock as constructed when the washer bears against a wooden surface.

In said dra-wings,-the portions markedArepresent a railroad-rail, B, the fish-plates thereon; O, the bolts; D, the nuts thereto; -EQ the washer, which,with the-housin gs thereon, forms the main portion of my nut-lock. The portion El has one end, e4, turned over to form a housing for the key E2, as shown. This housing should pass nearly or quite across the face of the key, in order to securely retain the same. In order to permit this and at the same time a1- low the nut to turn freely, I cut out the edge of said housing opposite said nut, leavingarecess, a', and preferably semiercularly, or separate the lips as shown. This permits the nut to be screwed down tightly upon the fish-plate without practically shortening the width of the key-housing, as the latter can by this arrangement extend entirely across the key at both the top and bottom and close to the nut.

The second key E2 is held in place by a housing formed of two portions, e5 e5, struck up out of the body of the portion E', and turned over, as shown, leaving a recess, x, which serves the same housing c4.

In the above-described double form of this lock the horizontal position of the portion E is maintained by reason of the two bolts passing through it, and therefore does not need to be so wide as the single form, which has to rest upon the flange of the rail for support.

The nut-locks shown at the right are. essentially the same as that described, except that the .washers are single instead ot double, andareprevented from turning by the liange of the rail instead of the bolts.

The keys may be lifted from place, when necessary, by a head, e2, or a recess or hole, g2, according to their construction. The key having been inserted, the nut is turned back slightly, and the size of the opening being thereby slightly decreased, the key cannot be thrown out by any jarring of the passing train. When a short key is employed, the top being below the top of the housing, it

purpose asthe recess in the may be held securely in place by bending the upper part of the housing slightly inward.

When it is desired to use this lock with bolts which pass through wood the baokof the Y washer may be serrated or provided with points, as shown in Fig. 5, which will enter the wood when the bolt is screwed down, and

thus prevent it from turning.

The material of which I prefer to construct my improved nut-lock washer is sheet metal of about one-eighth of an inch in thickness.

I do not claim broadly a washer provided with a liange to hold a key at the side of the nut, as this is old; but

I claiml. The plate E', having the housings e4 and e5, jointly with the keys E2 and E2, substantially as and for the purpose set forth.

2. The combination, in fastenings for nuts, of washer-plates having housings folded over and provided with recesses and keys E2, as set forth.

In witness whereof I have hereunto set my hand and seal, at Shelbyville, Indiana, this Sth day of June, A. D. 1881.

PRESTON JONES.

a. si 

